Device for press-fitting catalyzer core bed into outer case

US 6,499,204 B2
Device for press-fitting catalyzer core bed into outer case
Tetsuji Hayashi, Kanagawa (Japan)
Assigned to Calsonic Kansei Corporation, Tokyo (Japan)
Filed on 01-Jun-2001, as Appl. No. Calsonic Kansei Corporation, Tokyo (Japan)
Int. Cl.7B23P 19/04

US 6,499,204 B2 Device for press-fitting catalyzer core bed into outer case Tetsuji Hayashi, Kanagawa (Japan) Assigned to Calsonic Kansei Corporation, Tokyo (Japan) Filed on Jun. 01, 2001, as Appl. No. 9/870,740. Claims priority of application No. 2000-164439 (JP), filed on Jun. 01, 2000. Prior Publication US 2001/0048904 A1, Dec. 06, 2001 Int. Cl.7B23P 19/04 U.S. Cl. 298212;252 14 Claims 1. A device for press-fitting a generally cylindrical body into a cylindrical case, said generally cylindrical body being subjected to reduction in diameter when applied with a certain external force from a radial direction, comprising: a guide member formed with a vertically extending bore of which cross section gradually reduces in size with increase of a distance from a top of the bore toward a bottom of the same, the cross section of the bottom of said bore being slightly smaller than that of said generally cylindrical body, said guide member being adapted to be put on said cylindrical case having the bore of the guide member coaxially aligned with the interior of said cylindrical case; a pressing member which, when actuated, presses down said generally cylindrical body raised in the bore of said guide member thereby to thrust the raised generally cylindrical body into said cylindrical case through said bottom of the bore; and an actuator for actuating said pressing member, wherein said pressing member includes a center base plate, at least two side plates positioned on both sides of said center base plate, a guide structure by which said side plates are radially movable in opposite directions with respect to said center base plate, and biasing members for biasing said side plates radially outward.